Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Non-marketable equity securities, carrying value	$ 6,201	$ 6,775
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Non-marketable equity securities, carrying value		$ 913

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